... high quality audio, by any player with a 3.5MM jack connected directly to MP3 \ MP4 \ CD \ Computers and other kinds of ... Description: 1, can be easily connected to the MP3, MP4, CD, VCD, DVD, computer and other players. 2, no power, ... simply plug the product can be plugged into the player. 3, the built-in high-quality speakers, the ... music. 4, can be compatible with any 3.5mm headphone jack.